1. Tools Reference
  2. Troubleshooting Tools and Commands

9 Troubleshooting Tools and Commands

You use JDK troubleshooting tools and commands to troubleshoot Java applications and the Java Virtual Machine (JVM).

The following sections describe the JDK troubleshooting tools and commands:

  • jcmd: You use the jcmd utility to send diagnostic command requests to a running Java Virtual Machine (JVM).

  • jdb: You use the jdb command and its options to find and fix bugs in Java platform programs.

  • jhsdb: You use the jhsdb tool to attach to a Java process or to a core dump from a crashed Java Virtual Machine (JVM).

Note:

Tools identified as Experimental are unsupported and might not be available in future JDK releases.

  • jinfo: Experimental You use the jinfo command to generate Java configuration information for a specified Java process. This command is experimental and unsupported. For core files use jhsdb jinfo.

  • jmap: Experimental You use the jmap command to print details of a specified process. This command is experimental and unsupported. For core files use jhsdb jmap.

  • jstack: Experimental You use the jstack command to print Java stack traces of Java threads for a specified Java process. This command is experimental and unsupported. For core files use jhsdb jstack.